Sunday December 21 2025 Forecast (5:52AM)

83 Comments

DAYS 1-5 (DECEMBER 21-25)

The winter solstice occurs this morning at 10:03 a.m. EST! Our day will be fair and breezy but not too cold as moisture-starved low pressure passes to our north. Its cold front swings through later in the day and leads a colder air mass into the region for Monday with continued dry weather. A clipper low dives our way for Tuesday with a period of snow, except some mixing / rain along the coast for a time. I’m expecting generally minor accumulations with this event (mostly under but up to 3 inches of snow, depending on location). A quick passing trough can bring a snow flurry on Christmas Eve, otherwise generally fair weather is expected for the holiday period through Christmas Day.

TODAY: Partly sunny. Highs 40-47. Wind SW to W 10-20 MPH with higher gusts.

TONIGHT: Partly cloudy. Lows 21-28. Wind W to NW 10-20 MPH.

MONDAY: Mostly sunny. Highs 30-37. Wind NW 10-20 MPH, diminishing.

MONDAY NIGHT: Clear early, clouds return later. Lows 23-30. Wind S up to 10 MPH.

TUESDAY: Cloudy with snow (except a period of mix/rain coast), accumulation 1 to 3 inches except less than 1 inch near the coast. Highs 35-42. Wind variable 5-15 MPH.

TUESDAY NIGHT: Partly cloudy. Lows 18-25. Wind variable to NW 5-15 MPH, higher gusts.

WEDNESDAY: Variably cloudy. Slight chance of a passing snow shower. Highs 32-39. Wind W 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Lows 20-27. Wind W up to 10 MPH.

THURSDAY (CHRISTMAS): Partly cloudy. Highs 35-42. Wind SW 5-15 MPH.

DAYS 6-10 (DECEMBER 26-30)

Up-and-down temperature pattern, leaning toward slightly below normal with a couple disturbances potentially bringing mostly minor precipitation events – storm track trend favoring them passing to our north in the expected large scale pattern.

DAYS 11-15 (DECEMBER 31 – JANUARY 4)

A similar pattern continues as we end 2025 and reach the first few days of the New Year.

83 thoughts on “Sunday December 21 2025 Forecast (5:52AM)”

  3. Thanks TK, and happy solstice :). I like getting to be an early commenter. Wordle in 4. Yay snow!!!

  4. Thank you, TK. Up to 38 from
    34 low. I echo Julie’s yay snow. And it doesn’t look to disrupt travel or cause outages.

  7. I see the wordle challenge is out. Just waking up. Need to eat. Will try soon. Not sure I am up to the challenge. 2 3s and a 4 already at this hour on a Sunday. Was up late last night as we watched Love Actually after attending a Christmas party. No, I am not hung over as I do NOT drink.
    I might have a food hang over though as I consumed more Christmas cookies than I should.

  10. Good morning and thank you TK.

    41 up from 36. Some snow showers overnight or should I say Virga showers.

    Ocean: 46

    TK, when you posted less than an inch near the coast, was that for the South coast OR EAST cost or both?

    So what is up with the SSRA-S? Very robust near the East coast. Has it lost its way as it is clearly the Outlier OR has it encountered conditions that it doesn’t know how to handle? Did they forget to add the clipper sub routine???

    WORDLE: 4
    Thought for sure I had it in 3.
    SHOULD have remembered it had that word a month or 2 ago. Then I would have used the other word which I did on guess 4 which, of course was correct.

  14. 12Z NAM shows redevelopment to our South

    https://www.pivotalweather.com/model.php?m=nam&p=ref1km_ptype&rh=2025122112&fh=60&r=conus&dpdt=&mc=

    But it moves off

    https://www.pivotalweather.com/model.php?m=nam&p=ref1km_ptype&rh=2025122112&fh=63&r=conus&dpdt=&mc=

    https://www.pivotalweather.com/model.php?m=nam&p=ref1km_ptype&rh=2025122112&fh=69&r=conus&dpdt=&mc=

    Kuchera Snow

    https://www.pivotalweather.com/model.php?m=nam&p=snku_acc-imp&rh=2025122112&fh=69&r=us_ne&dpdt=&mc=

      1. That is what I was thinking as I looked it over.

        Any comments on the RRFS-A?
        That model has been Schizophrenic the last couple of days.

        Growing Pains? After all, it is still technically Experimental.

        1. Yes, it’s still going to struggle with some events, like this type. A work in progress. Its handling of more convective-based events is pretty decent!

          I think in this case it was just going back and forth between two vorticity maxima, trying to “decide” which one was to be dominant.

    2. Considering the motley crew running the train today, the caboose might be the safest spot!
      🙂

  24. 12z euro looks like marginal for tues system but look at the post xmas system nearly 6 to 12 inches

    1. Too bad it’s an operational run more than 4 days out, and quite above the ensemble mean…

      Pattern doesn’t really support anything that large without it slowing down.

    1. You can’t rely on Clippers to bring decent snows, if any, at least in SNE. They tend to bring rain events many times, if anything else.

      For some reason, NNE does well with Clippers. Have no idea why.

      1. West/northwest winds on the back sides of those clippers often deliver some good upslope snow in the mountains, especially along the spine of the Greens.

  27. Blue hill observatory Friday

    The wind has been something today! We have had strong southerly flow all day, starting into last night. So far the average is an impressive 25mph. We have had frequent gusts ranging from 40-60mph which mostly started to pick up after 11am. The peak gust for the day so far is 79mph, which occurred at 11:48am. This gust breaks the old record of 68mph for December 19th set in 1986. A special report will be prepared after this system moves out, in case another higher wind occurs.” Read the complete weather discussion by clicking here

  28. The drops by Hunter Henry are starting to pile up. The Pats are in trouble and I fear peaked early. Say what u will about the Belichick led years but he had this team playing its best football late in the season when it mattered most

  29. I agree Ace. With that said the old style pats defense would be playing more man to man than this zone bs. They need to jam the recievers

    1. Agree. They have an elite corner in Gonzo and paid elite money to Davis. They should be able to man up. They’re wasting that talent by playing zone.

  31. Nice to see the Pats in the lead. Would like to see a little bit more spunk but they got the lead and are doing Ok so far. 🙂

  32. May make a request. The Pats are leading the afc east. Would it be ok to ask that every negative comment about them be bookended by a positive comment.

  33. Drake Maye was special. Defense stepped up. Can’t figure out why the Ravens didn’t put Derrick Henry back in the game. May have cost ‘em. Great bounce back win.

  34. The Pats may not be the best team in the league, but Vrabel has molded a team that believes in themselves. The players all think that they have everything they need in their own locker room to win games. That culture is the envy of teams in every sport. It creates over-achievers.

  35. I saw so many posts on Facebook about the Patriots that aged really poorly. I’m sorry, but that’s hilarious to me. 😉

    1. I so agree. They are a young team; and SB or not have sure been impressive. Fans have had a terrific season to watch unfold

  36. The Patriots have a tough playoff road ahead of them with so many injuries on both sides of the ball. The Duckboats will have to wait until at least next year.

    1. At least we “should” win the AFC East. It’s been awhile since 2019. Still have the hat to prove it. 🙂

    2. Why are you always so negative about literally everything? And, you’re often just plain wrong. The season hasn’t ended yet. Has it? Why even watch the playoffs? So annoying.

      1. The Patriots “could” win the super bowl this year. Not likely, but they sure could do it as long as Drake Maye remains healthy.

      1. Just being realistic is all. You should hear the radio talk show hosts. They’ve been referring to them as “fools gold”. Even I disagree on that.

        1. One thing worse than Boston fair weather fans is Boston sports media. They have always been nasty. And more often than not wrong

        2. I don’t think counting them out of have any chance in the playoffs is being realistic. Why even play the games if this is how it works?

          And there’s a reason I don’t listen to sports radio. Most of those people flap just to flap. Sports radio used to be good in Boston. It hasn’t been for quite a while now.

          Let me ask you a question though. Honest answer please – what did you think the Pats record would be after this game?

  37. Many positives from this game !

    Overcoming an 11 pt deficit, on the road, in the 4th qtr against a team desperately needing a win for their playoff hopes.

    A game winning drive late in the 4th qtr.

    A big-time bounce back win and knowing Denver had lost earlier in the day.

  38. I’m not really impressed at all with tomorrow.

    If there’s snow inside 495, it’s more of a grass, tree accumulation thing, I think. Low level temps seem near or just above 32F.

    And the system is initially to our west, any redevelopment is weak and the system seems all stretched out.

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